they will be joined by former presidents carter, george w. bush, and bill clinton. the only other living u.s. president, george h.w. bush, has been in failing health and will not make that trip. and after the memorial mandela's body will lie in state for three days. his funeral is set for sunday. >>> a number of memorial events are planned in our area this week in honor of nelson mandela. on tuesday night a pyer vigil outside the south african embassy. the national cathedral will host the u.s. memorial on wednesday morning. there are a limited number of tickets available. we have a link on our website, nbcwashington.com, where you can apply for a seat. our jim vance will be traveling to the funeral. live reports from him here on nbc 4. >>> 4:26. d.c. gets a dose of winter weather. of right now it's ice that you have to worry about as you get ready this morning. we're taking a look at the trouble spots for you next. >>> and we are staying on top of a number of accidents as well as what you can expect before you head out the door. stay with us. our coverage of this wi